code: def get_merge_base(base_version, new_version):
      cmd = ["git", "merge-base", f"{base_version}", f"{new_version}"]
      merge_base = _run_cmd(cmd)
      return merge_base
  
file_path: audio/tools/release_notes/retrieve_prs.py
imports: import argparse
  import json
  import re
  import subprocess
  from collections import namedtuple
  from os.path import expanduser
  import requests
label_desc: Use image node_id 8 for calling a global function with example usage: get_merge_base(base_version, new_version) and returns: merge_base